Concept explainers
Perform each calculation to the correct number of significant figures.
a.
b.(568.99 −232.1)÷5.3
c.
d.(3.14 ×2.4367)−2.34
Learn your wayIncludes step-by-step video
Chapter 2 Solutions
INTRO.TO CHEM.PKG.
Additional Science Textbook Solutions
Inorganic Chemistry
Chemistry
Chemistry: The Central Science (14th Edition)
Chemistry: A Molecular Approach (4th Edition)
General Chemistry: Principles and Modern Applications (11th Edition)
- For the pin shown in Fig. 2.5, why is the third figure determined for the length of the pin uncertain? Considering that the third figure is uncertain, explain why the length of the pin is indicated as 2.85 cm rather than, for example, 2.83 or 2.87 cm.arrow_forward1.84 A student was given two metal cubes that looked similar. One was 1.05 cm on an edge and had a mass of 14.32 grams; the other was 2.66 cm on a side and had a mass of 215.3 grams. How can the student determine if these two cubes of metal are the same material using only the data given?arrow_forwardUltrapure silicon is used to make solid-state devices, such as computer chips. What is the mass of a circular cylinder of silicon that is 12.40 cm long and has a radius of 4.00 cm? The density of silicon is 2.33 g/cm3.arrow_forward
- You have two identical boxes with interior dimensions of 8.0 cm 8.0 cm 8.0 cm. You completely fill one of the boxes with wooden spheres that are 1.6 cm in diameter. The other box gets filled with wooden cubes that are 1.6 cm on each edge. After putting the lid on the filled boxes, you then measure the density of each. Which one is more dense?arrow_forward1.18 Two golfers are practicing shots around a putting green. Each golfer takes 20 shots. Golfer 1 has 7 shots within 1 meter of the hole, and the other 13 shots are scattered around the green. Golfer 2 has 17 shots that go into a small sand trap near the green and 3 just on the green near the trap. Which golfer is more precise? Which is more accurate?arrow_forwardA 76.0076.00 pound flask of mercury costs $147.50.$147.50. The density of mercury is 13.534 g/cm3.13.534 g/cm3. Find the price of one cubic inch of mercury by calculating intermediate values. 1.) What is the price of one pound of mercury? 2.) What is the price of 1 g of mercury? 3.) What is the price of 1 cm3 of mercury? 4.) What is the price of 1 in3 of mercury? It takes 4.650 in34.650 in3 of mercury to make one manometer. Find the price of the mercury used to make 2121 manometers by first calculating the cost of mercury for one manometer. 1.) What is the price of mercury used to make one manometer? 2.) What is the price of mercury used to make 21 manometers?arrow_forward
- Pluto's gravity is 0.7 ms2 and Neptune's gravity is 11.0 ms2. On which planet or dwarf planet would your mass be greater? A. Pluto B. Neptune C. No difference D. impossible to determinearrow_forwardA 76.0076.00 pound flask of mercury costs $143.50.$143.50. The density of mercury is 13.534 g/cm3.13.534 g/cm3. Find the price of one cubic inch of mercury by calculating intermediate values. What is the price of one pound of mercury? What is the price of 1 g of mercury? What is the price of 1 cm3 of mercury? What is the price of 1 in3 of mercury?arrow_forward1.The literature for a pharmaceutical product states that 26 patients of the 2, 103 enrolled in the clinical study reported headache after taking the product which can be an adverse reaction. Calculating (a) the decimal fraction and (b) the percentage of patients reporting this adverse response? 2.Edward prepare a non-medicated plaster that was 1 3/4 inches long. If he stretched it out to 5 times its current length how long would it be? 3.The remains of Maalox® are to be combined to fill Mrs. Ramos’s prescription. They are 1/10 of a pint, 2/5 of a pint and ½ of a pint. How many pints will be in the combined product?arrow_forward
- ᴄʜᴏᴏꜱᴇ ᴛʜᴇ ᴄᴏʀʀᴇᴄᴛ ᴀɴꜱᴡᴇʀ. ᴡʜɪᴄʜ ᴏʀʙɪᴛᴀʟ ɪꜱ ꜰɪʟʟᴇᴅ ɪᴍᴍᴇᴅɪᴀᴛᴇʟʏ ᴀꜰᴛᴇʀ ᴛʜᴇ ₅ꜰ ᴏʀʙɪᴛᴀʟ? * ₅ɢ₆ᴅ₇ꜱ₇ᴅ ʜᴏᴡ ᴍᴀɴʏ ᴏʀʙɪᴛᴀʟꜱ ᴀʀᴇ ɪɴ ᴛʜᴇ ₅ꜱ ꜱᴜʙꜱʜᴇʟʟ? * ₁₂₃₅ ʜᴏᴡ ᴍᴀɴʏ ᴏʀʙɪᴛᴀʟꜱ ᴀʀᴇ ɪɴ ᴛʜᴇ ₄ᴅ ꜱᴜʙꜱʜᴇʟʟ? * ₃₄₅₆ ʜᴏᴡ ᴍᴀɴʏ ᴛᴏᴛᴀʟ ᴇʟᴇᴄᴛʀᴏɴꜱ ᴄᴀɴ ᴛʜᴇ ‘ᴘ’ ᴏʀʙɪᴛᴀʟꜱ ʜᴏʟᴅ? * ₂₆₁₀₁₄ ᴡʜᴀᴛ ᴀʀᴇ ᴛʜᴇ Qᴜᴀɴᴛᴜᴍ ɴᴜᴍʙᴇʀꜱ ᴛʜᴀᴛ ᴅᴇꜱᴄʀɪʙᴇ ᴀ ₃ᴘ ᴏʀʙɪᴛᴀʟ? * ɴ =₃, ʟ=₁, ᴍʟ=₁ɴ =₃, ʟ=₁, ᴍʟ=₀ɴ =₃, ʟ=₁, ᴍʟ=-₁ᴀʟʟ ᴏꜰ ᴛʜᴇ ᴀʙᴏᴠᴇarrow_forwardA Toyota Prius Hybrid uses 59.7 L gasoline to drive from San Francisco to Seattle, a distance of 1300 km (two significant digits). (a) What (average) fuel economy, in miles per gallon, did the Prius get during this trip? (b) If gasoline costs $3.90 per gallon, what was the fuel cost for this trip? REGARDING PART B!! So, the answer listed for part b is $62. Why is it 2 significant figures? Shouldn't it be $61.6 since 59.7 L is 3 significant figures? Here is my calculation: (59.7 L) x (1.0567 qt/1L) x (1 gal/ 4 qt) = 15.8 gallons x $3.90 = $61.6 I see for part A why it is 2 significant figures, since 1300 km is 2 significant figures, but shouldn't part b be 3 significant figures since the kilometers is not involved? Thank you!arrow_forwardWhat is the result of the following calculation to the correctnumber of significant figures?(6.266 − 6.261) ÷ 522.0 = a) 9.5785 × 10–6b) 9.579 × 10–6c) 9.58 × 10–6d) 9.6 × 10–6e) 1 × 10–5arrow_forward
- Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning